Column



(No Model.)`

' N; POULSON.

GDLUMN.

No. 521,320. Patented June 12, 1894.

INVENTUR: @f

wAsmNGmN. D. c.

UNITED STATES PATENT OFFICE.

NIELs POULsON, OF FORT HAMILTON, NEW YORK.

COLUMN.

.SPECIFICATION forming part of Letters Patent No. 521,320, dated June12, 1894.

Application mantra 24,1892'. serial 110.426.262- (Nomade.)

To @ZZ whom it may concern.-

Be it known that I, NIELs PoULsON, a citizen of the United States,residing at Fort Hamilton, in the county of Kings and State of NewYork,have invented a new and useful golummof which the following is aspecificaion.

My invention relates to iron or steel columns built up from bars rivetedtogether,'

the bars being arranged radially, that is so that the lef.,r or web ofone bar stands at an angle to the leg orweb of the adjoiningbars, andeach bar having a iange along the inner edge for riveting it to one ofthe adjoining bars.

My invention consists of an iron or steel column, composed of a centralcore of radially disposed bars, each of which has a flange at the innerend by which it is riveted to the leg or web of -one of the adjoiningbars, and intermediately arranged reinforcing bars.

My invention consists further of a column in which the radially disposedbars herein referred to and constituting what may be termed the core,whether having a head or flange'at the outer end of each or not, formwhen set in position one continuous piece reaching, in a building forinstance, from the cellar to the roof, the bars being made of suchlengths and so arranged that the abutting ends of each line of barsbreak joints with the abutting ends of the adjoining lines of bars.

My invention further consists in various details of construction andarrangement hereinafter specified.

In the drawings-Figure ,1, represents an elevation of this improvedwrought iron or steel column four stories in height. Fig. 2, representsan elevation of the core of the column. Fig. 3, represents a crosssection on the line a, a, of Fig. 1. Fig. 4, represents a cross sectionon the line b, b, of Fig. 1. Fig. 5, represents a cross section on theline c, c, of Fig. 1. Fig. '6, represents a cross section on the line d,d, of Fig. 1. Fig. 7, represents a cross section of the simplest form ofco1- umn to which my invention may be applied. Figs. 8, 9, 10 and 11,represent cross sections of modifications of column. Figs. 1 and 2, aredrawn on a smaller scale than the other figures.

The same letters of reference are used on the several figures toindicate identical parts.

The general form of the central core or portion of ,the column isrepresented in cross section in Fig. '7. It consists as shown of fourangle irons so arranged that the leg e, of one projects ata right angleto the legs ofthe two adjoining ones, while the feet c', lie closeagainst the back of the legs to which they are riveted. Thus the anglesor bars may be said to be radially arranged, the foot or flange runningalong the inner edge of the leg or web thereof.

For the sake ofkadding strength to a simple column composed of radiallyarranged bars only iianged T bars j", may be used as shown in crosssection in Fig. 6, the head f', of the T also affording a ready meansfor the attachment of brackets and angles for supporting and securinggirders to the column.

In most cases where the column is of any considerable length or heightand has to support loads at a number of diiferent points along itsheight it will require strengthening in proportion as the load upon itincreases. The column, whether constructed as shown in Fig. 7, or asshown in the other figures, is admirably adapted for proportioning itsstrength along its height to the loads to be carried, by reinforcing itas is illustrated in Figs. 5, 4, 3 and 1. Thus the column shown in Fig.1, supports loads at four different points, reaching say from thebasement to the roof of a four story building. The eolumn embodiesthroughout its entire length the iianged T- bar construction shown incross section in Fig. 6, and the part of the column illustratedseparately in elevation in Fig. 2, may be termed its core. The core may,however, as well consist of any of the forms shown in Figs. 7, 8 and 9.The core is left bare at the roof story. At the story below the core isre-inforced by intermediately arranged plates g, as shown in Fig. 5. Atthe next story below another reinforcement by the T-bars h, riveted tothe plates is provided. At the basement a still further reinforcement isprovided by T-bars fi, also riveted to the' plates g. It will beobserved that the reinforcements are so devised that they can bevreadily riveted to the original ICO the core is or is not themanufacture of what I have termed the core of the column, and to soarrange the bars that the abutting ends of one line break joints withthe abutting ends of the adjoining lines, as shown in Fig. 2, wherethese cross 3 To obtain this result there must necessarily be in a fourbar core, three short bars at one end, and at the other end three orfour short bars according as the whole length of bars used. Will also becarried out in the `application of the reinforcing plates and bars wherethey require to be of greater total -length than is obtainable from themills. This break joint construction of the column favors economy ofmanufacture, docs away with the use of r The central i l rangedreinforcing bars.

iish plates, and adds stiffness. core construction of my column alsoplays a very lmportant part in its use for tall structures, designed tosupport loads at dierent heights, because the core can be run up in onepiece the entire length= that is continuously or mast like, aifordingthe greatest obtainable rigidity against cross strains and can bereinforced as before specified.

of this column is that. the angular spaces of the core wlll run cleanfrom the cellar to the roof, aording excellent pockets for the reiception of pipes and wires.

To allow of a cheap and strong construction of column consistingofradially disposed bars l each having aiiange at its inner end and rivjeted to the leg or rib of an adjoining bar, and a head or Iiange at itsouter end, I have concelved of the idea of utilizing channel `or Z fbars as found in the market for the purpose. The proper disposition ofthe bars is illustrated in Figs. S and 9, and will be understood withoutfurther description. The advantage of this construction is that theWrought or rolledcolumu may be constructed from forms found in themarket and the necessity for the 3 special construction of rolls orother devices to produce the formsof flanged core bar shown joints arelettered respectively 7a, 7c', 7a2,

0 a multiple of the long This break joint construction.;

in Figs. 3, 4 and 5, be thus avoided. Channel and Z bars are fullequivalents for the purpose and I so use them.

The column shown in Fig. l0, is of an especially desirable formation andaiords flanges at the periphery for attachment of beams and girders.Itis built up of angle and T bars 6o found on the market, the angle barsbeing arranged wth their apexes at the axis of the column while the websof the T-bars are riveted between said angle bars.

Fig. 11, practically explainsitself. Thebars making up the corestructure are like Fig. 7, excepting that their ends are somewhatthickened. i Theintermediate reinforcingbars are also somewhat dierentshaped being more in the form of an angle bar somewhat enlarged 7o atthe angle.

What I claim as my invention is- 1. A built-up wrought iron or steelcolumn composed substantially as before set forth, of a central core ofradially disposed bars each of which has a flange at the inner end bywhich it is riveted -to the leg or web of one of the adjoining bars, andintermediately ar- 2. A continuous built-up wrought iron or 8o steelcolumn for tall structuresor buildings of several stories composed,substantially as before set forth, of radially disposed bars each ofwhich has a ange at the inner end by which it is riveted to the leg orweb of one of the ad- S 5 i joining bars and abutting ends of each lineof An incidental but very important feature f bars breaking joints withthe abutting ends of the adjoining lines of bars. n

3. A built-up wrought iron or steel column composed, substantially asset forth, of a cen- 9o tral core of radially disposed bars each ofwhich has a flange at the inner end by which it is riveted to the leg or`web of one of the adjoining bars, and intermediately arrangedreinforcing bars each provided with one or more strengthening ribs orflanges.

4. A built-up wrought iron or steel column composed, substantially asset forth, of angle bars arranged with their apexes at the axis-of thecolumn, and T-bars having their webs berco tween and riveted to saidangle-bars.

NIELs roULsoN.

Witnesses:

S. FEUCHTWANGER, A. C. ANDERSON.

